Lessons through maps and map making
This portfolio is a collection of the skills developed in VIS 2128 taught by Professor Carole Voulgaris.
On accessibility in Hong Kong
Map 1
As a context for the subsequent maps regarding accessibility in Hong Kong, this map gives one an idea of the public housing, schools and population density landscape in the city and how its accounts for the observations in later maps. This map also serves to demonstrate the following skills:
- Displaying multiple vector layers on the same map
- Calculating and displaying relationships among point and polygon layers based on distance
Access to transit stops
Map 2
Map 3
These maps demonstrate:
- Calculating and displaying accessibility, based on travel time
Pedestrian access to transit tops (Raster layer)
Map 4
This map demonstrates:
- Displaying raster data on a map
- Calculating and displaying accessibility, based on travel time
Pedestrian access to transit tops (Vector layer)
Map 5
This map demonstrates:
- Converting between raster layers and vector layers
- Calculating and displaying accessibility, based on travel time
On ridership in Cambridge
Map 6
This was the first assignment that introduced map making in R. The skills demonstrated are:
- Aggregating point data to a layer of polygons
Unique to our group, we needed to geo-reference the data set for ridership in R by joining the subway line shapefile to the ridership csv file.
On access to hospitals for persons with a disability in Suffolk County, MA
Map 7
This interactive map demonstrates the following skills:
- Displaying data on an interactive map
On Reykjavik, 1902 and today
Map 8
This map shows the service infrastructure in Reykjavík today as the top layer. The historical 1902 map is the second layer at 50% transparency. It overlays the contemporary map. In this order, the service infrastructure which has sprawled out of old Reykjavík, is denoted by a circle. The various types are differentiated by the color of the circle’s fill. We observe “playgrounds” are the largest group and is distributed across old and new Reykjavík, shedding light onto the possibly playful daily life of Icelandic children and their society’s priority for them.
This map demonstrates:
- Geo-referencing a raster image